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Modern Synthetic Methods 1986 - Conference Papers of the International Seminar on Modern Synthetic Methods 1986, Interlaken,... Modern Synthetic Methods 1986 - Conference Papers of the International Seminar on Modern Synthetic Methods 1986, Interlaken, April 17th/18th 1986 (Paperback, Softcover reprint of the original 1st ed. 1986)
R. Scheffold; Assisted by H. C. Brown, M. Demuth, G. Helmchen, K. Schaffner, …
R2,867 Discovery Miles 28 670 Ships in 10 - 15 working days

In the tricyclooctanone approach to polyquinane syntheses[ll the photochemical rearrangement of bicyclo[2.2.2]octenone, 1a 2a,[2J has been the initial key reaction providing tricyclo- 2 [3.3.0.0 ' S]octan-3-one as a chiral building block.[3-SJ This reaction - an oxadi-n-methane (ODPM) process - and the 1,3-acyl shift (AS) forming the cyclobutanone 3 are quite generally the characteristic re- arrangement paths undergone by ~,~-unsaturated ketones (~,~-UKs) upon triplet sensitization and direct excitation with ultraviolet light, respectively. R' R' hv hv R~O ~ ~ (sens) WO ~ R ONR R 1a-c 2a-c 3a-c a R=R'=H b R = CH , R'= H 3 c R = R'= CH 3 As a polyvalent building block, the enantiomers of which are readily accessible from cheap bulk chemicals such as benzene and its derivatives, the parent system 1a and three younger generations of its class (Sections 3.1. - 3.4.) have no equal among synthetically useful photochemical rearrangements. 2. THE PHOTOCHEMISTRY OF ~,~-UNSATURATED KETONES The literature dealing with the spectroscopy and photo- chemistry of ~,~-UKs has been exhaustively and critically reviewed around 1975 by Dauben et al.[6l and Houk,[7J and in 1980 by Schuster.[ SlI1 The 1,3-AS was first observed on direct excitation of 1) For more recent papers on i3,~-UK photochemistry see [9-24]. 64 ~ R' hv ~o hv .,.

Flame (Paperback): H. C. Brown Flame (Paperback)
H. C. Brown
R366 Discovery Miles 3 660 Ships in 10 - 15 working days
Reno (Paperback): H. C. Brown Reno (Paperback)
H. C. Brown
R335 Discovery Miles 3 350 Ships in 10 - 15 working days
Club Depravity - Collection (Paperback): H. C. Brown Club Depravity - Collection (Paperback)
H. C. Brown
R273 Discovery Miles 2 730 Ships in 10 - 15 working days
Bite Me (Paperback): H. C. Brown Bite Me (Paperback)
H. C. Brown
R243 Discovery Miles 2 430 Ships in 10 - 15 working days
Nox (Paperback): H. C. Brown Nox (Paperback)
H. C. Brown
R277 Discovery Miles 2 770 Ships in 10 - 15 working days
Cops 'n' Floggers - Collection (Paperback): H. C. Brown Cops 'n' Floggers - Collection (Paperback)
H. C. Brown
R276 Discovery Miles 2 760 Ships in 10 - 15 working days
One Night in a Dungeon - Anthology (Paperback): H. C. Brown, Tamsin Baker, Dylan McEwan One Night in a Dungeon - Anthology (Paperback)
H. C. Brown, Tamsin Baker, Dylan McEwan
R249 Discovery Miles 2 490 Ships in 10 - 15 working days
Tall, Dark 'n' Texan - The thrilling adventure of a girl, a hurricane, and a sexy Texas cowboy (Paperback): H. C.... Tall, Dark 'n' Texan - The thrilling adventure of a girl, a hurricane, and a sexy Texas cowboy (Paperback)
H. C. Brown
R280 Discovery Miles 2 800 Ships in 10 - 15 working days
Insatiable (Paperback): H. C. Brown Insatiable (Paperback)
H. C. Brown
R245 Discovery Miles 2 450 Ships in 10 - 15 working days
Arjun's Pups (Paperback): H. C. Brown Arjun's Pups (Paperback)
H. C. Brown
R278 Discovery Miles 2 780 Ships in 10 - 15 working days
Club Depravity - Books 3 & 4 - Taming His Pup & Jackson (Paperback): H. C. Brown Club Depravity - Books 3 & 4 - Taming His Pup & Jackson (Paperback)
H. C. Brown
R275 Discovery Miles 2 750 Ships in 10 - 15 working days
Club Depravity - Books 5 & 6 - Trust & Subspace (Paperback): H. C. Brown Club Depravity - Books 5 & 6 - Trust & Subspace (Paperback)
H. C. Brown
R278 Discovery Miles 2 780 Ships in 10 - 15 working days
Floggers - Collection (Paperback): H. C. Brown Floggers - Collection (Paperback)
H. C. Brown
R340 Discovery Miles 3 400 Ships in 10 - 15 working days
The Pride Brothers Collection - Volume One - Coming Out With Pride & Claws (Paperback): H. C. Brown The Pride Brothers Collection - Volume One - Coming Out With Pride & Claws (Paperback)
H. C. Brown
R326 Discovery Miles 3 260 Ships in 10 - 15 working days
The Mackenzie - The Complete Trilogy (Paperback): H. C. Brown The Mackenzie - The Complete Trilogy (Paperback)
H. C. Brown
R708 Discovery Miles 7 080 Ships in 10 - 15 working days
Roar (Paperback): H. C. Brown Roar (Paperback)
H. C. Brown
R268 Discovery Miles 2 680 Ships in 10 - 15 working days
Slave of the Beast (Paperback): H. C. Brown Slave of the Beast (Paperback)
H. C. Brown
R336 Discovery Miles 3 360 Ships in 10 - 15 working days
Purr-fect Lust (Paperback): H. C. Brown Purr-fect Lust (Paperback)
H. C. Brown
R275 Discovery Miles 2 750 Ships in 10 - 15 working days
Rock 'n' Leather (Paperback): H. C. Brown Rock 'n' Leather (Paperback)
H. C. Brown
R303 Discovery Miles 3 030 Ships in 10 - 15 working days
Highlander in the Mist (Paperback): H. C. Brown Highlander in the Mist (Paperback)
H. C. Brown
R303 Discovery Miles 3 030 Ships in 10 - 15 working days
Down and Dirty in Rio & Melting Down Under - Combo Paperback (Paperback): H. C. Brown Down and Dirty in Rio & Melting Down Under - Combo Paperback (Paperback)
H. C. Brown
R274 Discovery Miles 2 740 Ships in 10 - 15 working days
Time Slip Lover (Paperback): H. C. Brown Time Slip Lover (Paperback)
H. C. Brown
R271 Discovery Miles 2 710 Ships in 10 - 15 working days
My Purr-Fect Alphas (Paperback): H. C. Brown My Purr-Fect Alphas (Paperback)
H. C. Brown
R336 Discovery Miles 3 360 Ships in 10 - 15 working days
Her Purr-fect Seduction (Paperback): H. C. Brown Her Purr-fect Seduction (Paperback)
H. C. Brown
R268 Discovery Miles 2 680 Ships in 10 - 15 working days
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